3. Please solve the following chemistry problem. A chemistry graduate student is given 500. mL of a 0.40M ammonia (NH₂)solution. Ammonia is a weak base with Âµ = 1.8× 10¯5. What mass of NH₂CIshould the student dissolve in the NH, solution to turn it into a bufferwith pH = 9.68?You may assume that the volume of the solution doesn't change whenthe NH CI is dissolved in it. Be sure your answer has a unit symbol, andround it to 2 significant digits.

Solution : The pOH of the buffer of the weak base can be calculated by Henderson Hasselbalch…

A chemistry graduate student is given 500. mL of a 0.40μ ammonia (NH3) solution. Ammonia is a weak base with K₁=1.8×10¯5. What mass of NH4Cl should the student dissolve in the ní, solution to turn it into a buffer with pH = 9.68? You may assume that the volume of the solution doesn't change when the NH₂CI is dissolved in it. Be sure your answer has a unit symbol, and round it to 2 significant digits.

A chemistry graduate student is given 500. mL of a 0.40μ ammonia (NH3) solution. Ammonia is a weak base with K₁=1.8×10¯5. What mass of NH4Cl should the student dissolve in the ní, solution to turn it into a buffer with pH = 9.68? You may assume that the volume of the solution doesn't change when the NH₂CI is dissolved in it. Be sure your answer has a unit symbol, and round it to 2 significant digits.

Chemistry

9th Edition

ISBN:9781133611097

Author:Steven S. Zumdahl

Publisher:Steven S. Zumdahl

Chapter16: Solubility And Complex Ion Equilibria

Section: Chapter Questions

Problem 111IP: Consider 1.0 L of an aqueous solution that contains 0.10 M sulfuric acid to which 0.30 mole of...

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